Examples

* =if(mousex()<10,'left','right') <- returns left or right according to mousex position
* =property(pc(pc2d.billboard),propid(text)) <- returns the value of the "text" property from the "pc2d.billboard" pc in current entity.
* =enemy+?i -> returns something like enemy13 (if i pcproperty was 13 at the moment)
* =[1,2,3] -> returns a vector3 with contents x=1 y=2 z=3

Annex 1: Dynamic parameters

If you use @par (instead
of the already existing $par notation) you can get dynamic
parameters from triggers. As opposed to static ($par) parameters
these parameters can change every time the reward is fired.
Currently there are the following limitations:

* @par notation does not work in triggers (that will stay).
* @par notation does not work in sequences.